ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,605, issued on Oct. 14.
"Barrel cooling block for a semi-automatic rifle" was invented by Raymond Brien (Scottsdale, Ariz.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention is a cooling block that is added to a semi-automatic rifle to improve the cooling of the barrel. The cooling block is designed to fit into an air-cooling shroud and sit tightly against the gun barrel. The tolerances for the contact surface between the cooling block and the outer gun are critical for optimal cooling, and the block is designed for easy replacement to provide more continuous cooling."
The patent was filed on June 14, 2025, under Application No. 19/238,40...